100-890 無料問題集「Cisco Supporting Cisco Collaboration Devices」

（A）Both a digital signal and noise are boosted by amplifiers

（B）The analog signal from the telephone is digitized into PCM signals by the voice codec

（C）The voice gateway can perform only a compression function

（D）Digital voice networks convert the sound waves into electrical signals that are analogous to the original sound waves

（A）They produced high-resolution image quality

（B）They had not been invented yet.

（C）They operated at a high expense.

（D）They operated at a high frame rate

（E）They produced an unreliable image quality

（A）Turn Server

（B）Web Bridge

（C）Load Balancer

（D）H.323 Gateway

（A）as a public switched telephone network device

（B）as a circuit-switched telephone network device

（C）as a packet telephony network device

（D）as a media switched telephone network device

（A）Network Time Protocol (NTP)

（B）Dynamic Host Configuration Protocol (DHCP)

（C）Cisco Discovery Protocol

（D）Domain Name System (DNS)

（A）Gatekeeper

（B）IP Phone

（C）Multipoint Control Unit

（D）Gateway